[inspector] introduced stepIntoAsync for chained callbacks

src/debug/debug.cc

Index: src/debug/debug.cc
diff --git a/src/debug/debug.cc b/src/debug/debug.cc
index bed6b12e864cabf740bf9447d45c0a309765cc83..944842adc1b1303e9603333be29d9dec0852276c 100644
--- a/src/debug/debug.cc
+++ b/src/debug/debug.cc
@@ -403,6 +403,7 @@ void Debug::ThreadInit() {
   thread_local_.target_fp_ = 0;
   thread_local_.return_value_ = Smi::kZero;
   thread_local_.async_task_count_ = 0;
+  thread_local_.non_breakable_async_events_ = false;
   clear_suspended_generator();
   thread_local_.restart_fp_ = nullptr;
   base::NoBarrier_Store(&thread_local_.current_debug_scope_,
@@ -1927,9 +1928,6 @@ void ResetPromiseHandle(const v8::WeakCallbackInfo<void>& info) {
 // different stacks from direct Promise use, but we save and restore a
 // stack once for all reactions.
 //
-// If this isn't a case of async function, we return false, otherwise
-// we set the correct id and return true.
-//
 // TODO(littledan): Improve this case.
 int GetReferenceAsyncTaskId(Isolate* isolate, Handle<JSPromise> promise) {
   Handle<Symbol> handled_by_symbol =
@@ -1958,11 +1956,12 @@ void Debug::RunPromiseHook(PromiseHookType type, Handle<JSPromise> promise,
   int id = GetReferenceAsyncTaskId(isolate_, promise);
   switch (type) {
     case PromiseHookType::kInit:
-      debug_delegate_->PromiseEventOccurred(
-          debug::kDebugPromiseCreated, id,
+      debug_delegate_->PromiseCreatedEvent(
+          id,
           parent->IsJSPromise() ? GetReferenceAsyncTaskId(
                                       isolate_, Handle<JSPromise>::cast(parent))
-                                : 0);
+                                : 0,
+          !thread_local_.non_breakable_async_events_);
       return;
     case PromiseHookType::kResolve:
       // We can't use this hook because it's called before promise object will
@@ -2043,7 +2042,7 @@ void Debug::OnAsyncTaskEvent(debug::PromiseDebugActionType type, int id) {
   if (in_debug_scope() || ignore_events()) return;
 
   if (debug_delegate_) {
-    debug_delegate_->PromiseEventOccurred(type, id, 0);
+    debug_delegate_->PromiseEventOccurred(type, id);
     if (!non_inspector_listener_exists()) return;
   }